jō 帖

1　A form of concertina-folded book *orihon 折本.

2　Abbreviation of hōjō 法帖 the living quarters of the chief priest in Zen Buddhist temples.

3　A unit for counting sheets of paper and other flat materials. One jō is 48 sheets of *minogami 美濃紙, 20 sheets of *hanshi 半紙, and 10 sheets of dried laver nori 糊.

4　Also written 畳. A unit used to count folding screens *byōbu 屏風 before the 14th century, when screens began to be counted in pairs sō 双.